<template>
  <div class="count">
    <h2>当前求和为: {{ countStore.sum }}</h2>
    <select v-model.number="n">
      <option value="1">1</option>
      <option value="2">2</option>
      <option value="3">3</option>
    </select>
    <button @click="add">加</button>
    <button @click="minus">减</button>
  </div>
</template>

<script setup lang="ts" name="Count">
import { ref, reactive} from 'vue';
import { useCountStore } from "@/store/count";

const countStore = useCountStore()

// 以下两种方式都可以拿到 state 中的数据
// console.log('@@@', countStore.sum)
// console.log('@@@', countStore.$state.sum)

/* let obj = reactive({
  a: 1,
  b: 2,
  c: ref(3)
})
let x = ref(9)
console.log(obj.a)
console.log(obj.b)
console.log(obj.c)
console.log(x.value) */

// 数据
let n = ref(1)    // 用户选择的数字

// 方法
function add() {
}

function minus() {
}

</script>

<style scoped>
.count {
  background-color: skyblue;
  padding: 10px;
  border-radius: 10px;
  box-shadow: 0 0 10px;
}
select, button {
  margin: 0 5px;
  height: 25px;
}
</style>